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CAT.ES70-21 A Series VC Direct Operated 2 Port Solenoid Valve for Air Series VCA

Series VC SeriesVCA - SMC ETechcontent2.smcetech.com/pdf/VCA-A_EU.pdfSeries VC 1 Direct Operated 2 Port Solenoid Valve for Air Series VCA. Direct Operated 2 Port for Air SeriesVCA

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Page 1: Series VC SeriesVCA - SMC ETechcontent2.smcetech.com/pdf/VCA-A_EU.pdfSeries VC 1 Direct Operated 2 Port Solenoid Valve for Air Series VCA. Direct Operated 2 Port for Air SeriesVCA

CAT.ES70-21 A

Series VCDirect Operated 2 Port Solenoid Valve for Air

Series VCA

Page 2: Series VC SeriesVCA - SMC ETechcontent2.smcetech.com/pdf/VCA-A_EU.pdfSeries VC 1 Direct Operated 2 Port Solenoid Valve for Air Series VCA. Direct Operated 2 Port for Air SeriesVCA

Series VCA Multipurpose Valve for Air

Series VCA

Three compact sizes available

Wiring variations

Wiring specifications (Class B coil)

GrommetDIN connector

Conduit Conduit terminalVCA20Class 2

VCA30Class 3

VCA40Class 4

Enclosure: Dust-proof & splash-proof (IP65 equivalent)

A variety of wiring variationsGrommet, DIN connector,Conduit, Conduit terminal

Size and weight reduced

}

Bottom mounting threadsMounting bracket also available

Flame resistanceUL94 V-0 standard

Built-in surge voltage suppressor

Miniaturized coilBuilt-in rectifying circuit (AC)• Noise prevention • Burn-out prevention

Direct Operated 2 Port Solenoid Valve for Air

Improved durability (Nearly twice the life of the previous series)

SM

C

1

Operating resistance of moving parts reduced for improved longevity and wear resistance.

Compact: Single valve volume reduced 13% (Class 2)Weight reduced 25% (Class 2)Manifold length reduced 22% (Class 1: 5 stations)(Compared to previous series)

∗ When shipped from the factory, the electrical entry is on the IN port side.

Special construction reduces operating resistance

New compact coil reduces the size and weight of the valve

Volume : –13%Weight : –25%

Compared to previous series (Class 2)

High flow rate:324 to 2071 Nl/min

Electrical entry is possible from four directions

Electrical entry directions

Features 1

Page 3: Series VC SeriesVCA - SMC ETechcontent2.smcetech.com/pdf/VCA-A_EU.pdfSeries VC 1 Direct Operated 2 Port Solenoid Valve for Air Series VCA. Direct Operated 2 Port for Air SeriesVCA

For subsonic range where P1 + 0.1013 < 1.89 (P2 + 0.1013)

Q = 226S⋅ ∆P (P2 + 0.1013)

For sonic range where P1 = 0.1013 ≥ 1.89 (P2 + 0.1013)

Q = 113S (P1 + 0.1013)

Q: Flow rate l/min (ANR)S: Effective area (mm²)

∆P: Pressure dropl P₁ — P₂ (MPa)

P₁: Upstream pressure (MPa)

P₂: Downstream pressure (MPa)

* How to make correctio when the air temperature is different

Multiply the flow rate obtained from the formulas above by the

factor in the table below.

Air temperature (OC) -20 -10 0 10 30 40 50 60

Correction factor 1.08 1.06 1.04 1.02 0.98 0.97 0.95 0.94

1. MaterialsHNBR: Nitrile hydride rubber

Explanation of Terminology

Pressure Terminology

1. Maximum operating pressure differentialThis indicates the maximum pressure differential (upstream and downstream pressure differential) which can be allowed for operation with the valve closed or open.

2. Maximum operating pressureThis indicates the limit of pressure that can be applied inside the pipelines. (line pressure)

(The pressure differential of the solenoid valve unit must be no more than the maximum operating pressure differential.)

3. Withstand pressureThe pressure which must be withstood without a drop in performance after returning to the operating pressure range. (the value under the prescribed conditions)

Electrical Terminology

1. Surge voltageA high voltage which is momentarily generated in the shut-off unit by shutting off the power.

Other

Model

VCA(for air)2 port

solenoidvalve

3

�–

4

��–

5

�–

��–

7

����–

10

���

1/4 ( 8A)

1/4 ( 8A)

3/8 (10A)

3/8 (10A)

1/2 (15A)

3/4 (20A)

ClassOrifice size (mm ø)

2

3

4

Orifice size/Port size combinations

0.050.1

0.150.2

0.25

0.30.35

0.40.45

0.50.55

0.60.65

0.70.75

0.80.85

0.90.95

1.0

0.9

0.8

0.7

0.6

0.5

0.4

0.3

0.2

0.1

Flow characteristics

Port size

VCA21VCA21VCA31VCA31VCA41VCA41VCA41

ø3 S=6mm²

ø5 S=15mm²

ø4 S=10mm²

ø7 S=27mm²

ø5 S=15mm²

ø7 S=27mm²

ø10 S=38mm²

Flow rate Q l/min (ANR)

The sonic range pressure to generate a flow rate of 500l/min (ANR) isP = 0.64MPa for ø3 orifice, andP = 0.35MPa for ø4 orifice, and

Critical

pressure

Sonic

Subsonic

200

500

200

Dow

nstr

eam

pre

ssur

e of

val

ve

(P2)

MP

a

Upstream pressure of valve P1 = 1.0MPa

400

700

1000

800

500

200

1000

400

1200

300

600

400

1000

800

500 600

1000

1500

700

1200

Viewing the graph

How to find the flow rate for air/Flow rate formulas based on the air temperature of 20OC

Series VCAModel Selection

Features 2

Page 4: Series VC SeriesVCA - SMC ETechcontent2.smcetech.com/pdf/VCA-A_EU.pdfSeries VC 1 Direct Operated 2 Port Solenoid Valve for Air Series VCA. Direct Operated 2 Port for Air SeriesVCA

How to Order Valves (Single Type)

For air

234

Class 2Class 3Class 4

Series

NilA

General airDry air

Fluid

VC A 2 1 5 G 3 02

NilF

NoneFoot type bracket

Option

NilB

NoneSlotted locking type

Manual Override

NilFNT

RcG

NPTNPTF

Bracket assembly part no.VCA20-12-1AVCA30-12-1AVCA40-12-1A

Valve modelVCA21VCA31VCA41

Thread type (single type)

Symbol02030406

Port size1/4 (8A)3/8 (10A)1/2 (15A)3/4 (20A)

Class 2�———

Class 3��——

Class 4—���

Port size

Symbol345710

Orifice size (mmø)345710

Class 2�—�——

Class 3—�—�—

Class 4——���

Orifice size569

24VDC12VDC(Other, less than 50VDC)

Voltage

1

N.C.

OUT (2)

IN (1)

Valve type

Electrical entry

∗ Refer to the table below for orifice and port size combinations.

G – Grommet C – Conduit

Connector

∗ All types equipped with surge voltage suppressor.

3

�—

4

��—

5

�—

��—

7

����—

10

���

1/4 ( 8A)

1/4 ( 8A)

3/8 (10A)

3/8 (10A)

1/2 (15A)

3/4 (20A)

ClassOrifice size (mmø)

2

3

4

Table 1. Orifice and port size combinations

Port size

Table 2. Bracket assembly part nos.

∗ When only brackets are required, refer to Table 2 below.

∗ AC specifications are only for DIN terminal and conduit terminal type.

T – With conduit terminalTL– With conduit terminal

and light

D – DIN DL – DIN with lightDO – DIN (without connector)

Q

100VAC200VAC110VAC220VAC(Other, less than 250VAC)

AC∗ DC∗

12349

∗ Consult SMC regarding other voltages (9).

OrderMade

Series VC

1

Direct Operated 2 Port Solenoid Valve for Air

Series VCA

Page 5: Series VC SeriesVCA - SMC ETechcontent2.smcetech.com/pdf/VCA-A_EU.pdfSeries VC 1 Direct Operated 2 Port Solenoid Valve for Air Series VCA. Direct Operated 2 Port for Air SeriesVCA

Direct Operated 2 Port for Air Series VCA

2

Standard Specifications

Valve construction

Fluid

Withstand pressure MPa

Body material

Seal material

Ambient temperature °C

Fluid temperature °C

Enclosure

Environment

Valve leakage cm³/ min (ANR)

Mounting orientation

Vibration/Impact resistance m/s² Note 2)

Rated voltage

Allowable voltage fluctuation

Coil insulation type

Power consumption

Apparent power

Val

ve s

pec

ifica

tion

sC

oil

spec

ifica

tion

s

Direct operated poppet

Air/Inert gas

2.0

Al

HNBR

–20 to 60

–10 to 60 (with no freezing)

Dust proof, Splash proof (equivalent to IP65)

Location without corrosive or explosive gases

0.2 or less

Unrestricted

30/150 or less

24VDC, 12VDC, 100VAC, 110VAC, 200VAC, 220VAC (50/60Hz)

±10% of rated voltage

Class B

VCA2: 6.5W, VCA3: 8W, VCA4: 11.5W

VCA2: 7.5VA, VCA3: 10VA, VCA4: 13VA

Characteristic Specifications

VCA(for air)2 port

solenoidvalve

ClassModel

3

5

4

7

5

7

10

1.0

0.15

1.0

0.15

1.0

0.3

0.15

6 (324)

15 (815)

10 (540)

27 (1472)

15 (815)

27 (1472)

38 (2071)

Orificesize

mmø

Effective areamm²

(Nl/min) Weight

kg

Maximumoperatingpressure

differential MPa

Port size

1/4 ( 8A)

1/4 ( 8A)3/8 (10A)

3/8 (10A)1/2 (15A)3/4 (20A)

Max. operatingpressure

MPa

2

3

4

1.0

Note 1)

Note 1) Weight values are for the grommet type.

1.0

1.0

0.21

0.30

0.50

DC

AC Note 1)50Hz

60Hz

Note 1) Since AC coil specifications include a rectifying device, there is no difference in apparent power for starting and holding.

Note 2) Vibration resistance … Conditions when tested with one sweep of 10 to 300Hz in the axial direction and at a right angle to the armature, in both energized and deenergized states

Impact resistance …… Conditions when tested with a drop tester in the axial direction and at a right angle to the armature, one time each in energized and deenergized states

Page 6: Series VC SeriesVCA - SMC ETechcontent2.smcetech.com/pdf/VCA-A_EU.pdfSeries VC 1 Direct Operated 2 Port Solenoid Valve for Air Series VCA. Direct Operated 2 Port for Air SeriesVCA

Series VCA

3

Construction

Bracket Assembly Dimensions

No.

12345

Solenoid coil

Armature assembly

Return spring

O-ring

Body

Description

Parts list

Bracket mounting dimensions/Bracket material: Stainless steel

Material

Stainless steel

HNBR

AI

Stainless steel, HNBR, PPS

Assembly part no.

VCA20-12-1A

VCA30-12-1A

VCA40-12-1A

A

41

48

50

B

52

56

62

C

30

36

38

D

40

44

50

H

4.5

5.5

5.5

J

6

7

7

A

C

J

B D

2-øHValve mounting hole

4-ø6

Valve mounting screws

1.5

Page 7: Series VC SeriesVCA - SMC ETechcontent2.smcetech.com/pdf/VCA-A_EU.pdfSeries VC 1 Direct Operated 2 Port Solenoid Valve for Air Series VCA. Direct Operated 2 Port for Air SeriesVCA

Direct Operated 2 Port for Air Series VCA

4

Dimensions

Model A

18243035

PPort size

1/41/4, 3/83/8, 1/2

3/4

Grommet: G Conduit: C

DIN connector: D Conduit terminal: T

Q27303232

R40 48 56 58.5

Q46505252

R36 44 53 55.5

Q63666969

R35 42 51 53.5

S51545757

Q 98101104104

R36 44 53 55.5

S68717474

U81

91.5101 103.5

B

41506068

C

64768691

D

28344040

E

11.514 15 17.5

F

15172020

K

20.525 30 34

L

12.819 23 23

M

M4M5M5M5

Electrical entry

Grommet: G Conduit: C DIN connector: D Conduit terminal: T

(mm)

D

E

CR

A

Q F

B2-PPort size 2-P

Port size

D

E

A

G1/2

G1/2

CR

Q F

B

Approx. 300

Approx. 280

FF(Q)Q

S

(S)

E

R

App

rox.

44

C RC

A

D

B B2-PPort size

E

AD 2-P

Port size

G1/2

U

IN

Manual override

VCA21VCA31

VCA41

25

34

L

K 2-MThread depth 6

Manual override

2

L

K 2-MThread depth 6

L

K 2-MThread depth 6

Port size G1/2

L

K 2-MThread depth 6

Compatible heavy duty cordCable O.D. ø6.8 to 10

Page 8: Series VC SeriesVCA - SMC ETechcontent2.smcetech.com/pdf/VCA-A_EU.pdfSeries VC 1 Direct Operated 2 Port Solenoid Valve for Air Series VCA. Direct Operated 2 Port for Air SeriesVCA

Series VCA

5

How to Order Valves (VCA20)

How to Order Manifolds (VCA20)

VV2C A 2 02 How to Order Manifold Assemblies (Example)

Enter the valve and option models to be mounted under the manifold base part number.

<Example> VV2CA2-0502 .............

∗ VCA23-5G-3-Q ...........

1 set Manifold part no.

5 sets Valve part no. (Stations 1 to 5)

Enter together inorder, countingfrom station 1 onthe D side.

For air

2 Class 2

Series

NilFNT

RcG

NPTNPTF

Thread type

02 1/4 (8A)

OUT port size

NilA

SideFront

IN port direction

02:

10

2 stations:

10 stations

Stations

VC A 2 3 5 G

For air

2 Class 2

Series

3 N.C. for manifold

Valve type

Voltage

NilA

General airDry air

Symbol35

Orifice size (mmø)3 5

Orifice size

GCT

TLD

DLDO

GrommetConduitConduit terminalConduit terminal with lightDINDIN with lightDIN (without connector)

Electrical entry

NilB

NoneSlotted locking type (tool required)

Manual override

D side

U side

1

2

3

4

5

02

Fluid

3

"∗ " is the symbol for mounting.Add a "∗ " in front of the part numbers for solenoid valves, etc., to be mounted.

∗ All types equipped with surge voltage suppressor.

Q

569

24VDC12VDC(Other, less than 50VDC)

∗ AC specifications are only for DIN terminal and conduit terminal type.

100VAC200VAC110VAC220VAC(Other, less than 250VAC)

AC∗ DC∗

12349

∗ Consult SMC regarding other voltages (9).

OrderMade

Page 9: Series VC SeriesVCA - SMC ETechcontent2.smcetech.com/pdf/VCA-A_EU.pdfSeries VC 1 Direct Operated 2 Port Solenoid Valve for Air Series VCA. Direct Operated 2 Port for Air SeriesVCA

Direct Operated 2 Port for Air Series VCA

6

How to Order Valves (VCA30/40)

How to Order Manifolds (VCA30/40)

VV2C A 02 How to Order Manifold Assemblies (Example)

Enter the valve and option models to be mounted under the manifold base part number.

<Example> VV2CA3-05 .................

∗ VCA35-5G-4-03-Q ......

1 set Manifold part no.

5 sets Valve part no. (Stations 1 to 5)

Enter together inorder, countingfrom station 1 onthe D side.

For air

03

34

Class 3Class 4

Series

NilFNT

RcG

NPTNPTF

Thread type

NilFNT

RcG

NPTNPTF

NilA

SideFront

IN port direction

02:

10

2 stations:

10 stations

Stations

VC A 5 5 G

For air

34

Class 3Class 4

Series

5 N.C. for manifold

Valve type

Voltage

NilA

General airDry air

Thread type

GCT

TLD

DLDO

GrommetConduitConduit terminalConduit terminal with lightDINDIN with lightDIN (without connector)

Electrical entry

NilB

NoneSlotted locking type (tool required)

Manual override

D side

U side

1

2

3

4

5

Fluid

3

Symbol030406

Port size3/8 (10A)1/2 (15A)3/4 (20A)

Class 3��—

Class 4—��

Port size (OUT)

Symbol45710

Orifice size (mmø)45710

Class 3�—�—

Class 4—���

Orifice size

4

3

"∗ " is the symbol for mounting.Add a "∗ " in front of the part numbers for solenoid valves, etc., to be mounted.

∗ All types equipped with surge voltage suppressor.

569

24VDC12VDC(Other, less than 50VDC)

∗ AC specifications are only for DIN terminal and conduit terminal type.

100VAC200VAC110VAC220VAC(Other, less than 250VAC)

AC∗ DC∗

12349

∗ Consult SMC regarding other voltages (9).

OrderMade

Q

Page 10: Series VC SeriesVCA - SMC ETechcontent2.smcetech.com/pdf/VCA-A_EU.pdfSeries VC 1 Direct Operated 2 Port Solenoid Valve for Air Series VCA. Direct Operated 2 Port for Air SeriesVCA

Series VCA

7

Dimensions/VCA20 Manifold

2 67.5 77.5107.5117.5

3 96106136146

4124.5134.5164.5174.5

5153163193203

6181.5191.5221.5231.5

7210220250260

8238.5248.5278.5288.5

10295.5305.5335.5345.5

9267277307317

IN portdirection

Side ported

Front ported

Model Dimensionn (stations)

VV2CA2

L1

L2

L1

L2

L dimensions(mm)

D side U sideStations 1 2 3 4 5 n

Side ported: L1 = n x 28.5 + 10.5 L2 = n x 28.5 + 20.5Front ported: L1 = n x 28.5 + 50.5 L2 = n x 28.5 + 60.5

L2 (front ported)L1 (front ported)L2 (side ported)L1 (side ported)12.5

12

2-Rc 3/8IN port (side ported)

142

3351

68

Manual overrideManual override

2-ø5.6Mounting hole

5

5

26.4

46l

= 30

0l

= 28

063

98

27

25

25

n-1/4OUT port

38.5

37 4255

12.5

72

24.525 19.5

P = 28.5

2-3/8IN port(front ported)

Page 11: Series VC SeriesVCA - SMC ETechcontent2.smcetech.com/pdf/VCA-A_EU.pdfSeries VC 1 Direct Operated 2 Port Solenoid Valve for Air Series VCA. Direct Operated 2 Port for Air SeriesVCA

Direct Operated 2 Port for Air Series VCA

8

Dimensions/VCA30/40 Manifold

2103114139150117128161172

3138149174185158169202213

4173184209220199210243254

5208219244255240251284295

6243254279290281292325336

7278289314325322333366377

8313324349360363374407418

10383394419430445456489500

9348359384395404415448459

IN port direction

Side ported

Front ported

Side ported

Front ported

Model

VV2CA3

VV2CA4

Dimension

L1

L2

L1

L2

L1

L2

L1

L2

L dimensions (mm)

U sideD side

Stations 1 2 3 4 5 n

n (stations)

Model

VV2CA3

VV2CA4

A

5562

Q

3032

R

3641

S

5052

T

3238

U

5457

V

6669

W

3036

Y

101104

X

7174

Z

65.571

Electrical entry

Grommet: G Conduit: C DIN connector: D Conduit terminal: T

(mm)Dimensions

B

2631

C

1719

E

19.521

F

33 39.5

G

2631

H

3543

J2

39.543.5

K

3541

J3

57.565.5

J1

23.527

L

26.529

M

41.548

N

5055

VY

l =

280

L1 (front ported)

L2 (front ported)

HG

C BA

E

1

Ql

= 30

0SU

5.5

5.5

L2 (side ported)L1 (side ported)

2-ø6.4Mounting hole

2-1/2 (VCA30), 3/4 (VCA40)IN port (side ported)

FormulasVV2CA3Side ported: L1 = n x 35 + 33, L2 = n x 35 + 44Front ported: L1 = n x 35 + 69, L2 = n x 35 + 80VV2CA4Side ported: L1 = n x 41 + 35, L2 = n x 41 + 46Front ported: L1 = n x 41 + 79, L2 = n x 41 + 90

16

For manual override

Manual override

Manual override

(X)

25

F

J3

P = K (pitch)

L

1 1

22 2 2

W T RN

ZM

n-3/8, 1/2 (VCA30)n-1/2, 3/4 (VCA40)OUT port

J1

J2

2-1/2 (VCA30), 3/4 (VCA40)IN port (front ported)

Page 12: Series VC SeriesVCA - SMC ETechcontent2.smcetech.com/pdf/VCA-A_EU.pdfSeries VC 1 Direct Operated 2 Port Solenoid Valve for Air Series VCA. Direct Operated 2 Port for Air SeriesVCA

Series VCA

9

Manifold Exploded View

Series VCA20

Series VCA30/40

No.

1234

Part no.

AXT632-68-2VCA23�-���-�-Q

VVCA20-3-1VV2CA2-��

Material

Steel

HNBR

Al

Description

Mounting screw

Manifold valve Note 1)

Gasket

Manifold base

No.

1

2

345

6

Part no.

AXT632-69-1AXT632-69-2

VVCA30-3A-04-2VVCA30-3A-04-1OR-2200-200-H

VCA35�-��-�-��-QVVCA30-6-n

VVCA30-4A-04-2VVCA30-4A-04-1

Material

Steel

Al

HNBR

Steel

Al

Series VCA30 No.

1

2

345

6

Part no.

AXT632-69-1AXT632-69-2

VVCA40-3A-06-2VVCA40-3A-06-1OR-3200-200-H

VCA45�-��-�-��-QVVCA40-6-n

VVCA40-4A-06-2VVCA40-4A-06-1

Material

Steel

Al

HNBR

Steel

Al

Description

Mounting screw (side ported)

Mounting screw (front ported)

End plate assembly (D side, side ported)

End plate assembly (D side, front ported)

O-ring (for VCA40)

Manifold valve Note 2)

Tie-rod

End plate assembly (U side, side ported)

End plate assembly (U side, front ported)

Series VCA40

Note 1) Gasket is included with manifold valve .

Note 2) O-ring is included with manifold valve . Note 2) O-ring is included with manifold valve .

Description

Mounting screw (side ported)

Mounting screw (front ported)

End plate assembly (D side, side ported)

End plate assembly (D side, front ported)

O-ring (for VCA30)

Manifold valve Note 2)

Tie-rod

End plate assembly (U side, side ported)

End plate assembly (U side, front ported)

Page 13: Series VC SeriesVCA - SMC ETechcontent2.smcetech.com/pdf/VCA-A_EU.pdfSeries VC 1 Direct Operated 2 Port Solenoid Valve for Air Series VCA. Direct Operated 2 Port for Air SeriesVCA

Direct Operated 2 Port for Air Series VCA

10

Manifold Options

Blanking plate assembly (VCA20)

34

Series VCA30Series VCA40

34

Series VCA30Series VCA40

VVCA20 - 4A

Blanking block assembly (VCA30, 40)

Mounted on the tie-rod when adding one station.

Tie-rod for additional stations (1 station, set of 2) (VCA30, 40)

VVCA 3 0 - 6 - 1A

VVCA 3 0 - 2A - 00

This is used when a blanking plate is mounted on a manifold as preparation for a planned valve installation.

This is used when a blanking block is mounted on a manifold as preparation for a planned valve installation.

Page 14: Series VC SeriesVCA - SMC ETechcontent2.smcetech.com/pdf/VCA-A_EU.pdfSeries VC 1 Direct Operated 2 Port Solenoid Valve for Air Series VCA. Direct Operated 2 Port for Air SeriesVCA

Series VCA

Safety Instructions

These safety instructions are intended to prevent a hazardous situation and/or equipment damage. These instructions indicate the level of potential hazard by a label of "Caution", "Warning" or "Danger". To ensure safety, be sure to observe ISO 4414 Note 1) JIS B 8370 Note 2) and other safety practices.

1. The compatibility of equipment is the responsibility of the person who designs the system or decides its specifications.Since the products specified here are used in various operating conditions, their compatibility for the specific system must be based on specifications or after analysis and/or tests to meet your specific requirements. Be particularly careful in determining the compatibility of the fluid to be used.

2. Only trained personnel should operate machinery and equipment.The fluid can be dangerous if handled incorrectly. Assembly, handling or repair of systems should be performed by trained and experienced operators.

3. Do not service machinery/equipment or attempt to remove components until safety is confirmed.

1. Inspection and maintenance of machinery/equipment should only be performed after confirmation of safe locked-out control positions and measures to prevent danger from the fluid.

2. When equipment is to be removed, confirm the safety process as mentioned above, release fluid pressure and be certain there is no danger from fluid leakage or fluid remaining in the system.

3. Restart machinery carefully, confirming that safety measures are being implemented.

4. Contact SMC if the product is to be used in any of the following conditions:1. Conditions and environments beyond the given specifications, or if product is used outdoors.

2. With fluids whose application causes concern due to the type of fluid or additives, etc.

3. An application which has the possibility of having negative effects on people, property, or animals, requiring special safety analysis.

Note 1) ISO 4414 : Pneumatic fluid power -- Recommendations for the application of equipment to transmission and control systems

Note 2) JIS B 8370 : General Rules for Pneumatic Equipment

Warning

Caution : Operator error could result in injury or equipment damage.

Warning : Operator error could result in serious injury or loss of life.

Danger : In extreme conditions, there is a possible result of serious injury or loss of life.

11

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1. Cannot be used as an emergency shutoff val-ve, etc.The valves presented in this catalog are not designed for safety applications such as an emergency shutoff valve. If the valves are used in this type of system, other reliable safety assurance measures should also be adopted.

2. Extended periods of continuous energizationConsult SMC if valves will be continuously energized for exten-ded periods of time.

3. This solenoid valve cannot be used for explo-sion proof applications.

4. Maintenance spaceThe installation should allow sufficient space for maintenance activities (removal of valve, etc.).

5. Actuator driveWhen an actuator, such as a cylinder, is to be driven using a valve, take appropriate measures to prevent potential danger caused by actuator operation.

6. When the conduit type is used as equivalent to an IP65 enclosure, install a wiring conduit, etc.See page 14 for details.

Design Selection

2. Low temperature operationUnless otherwise indicated in each valve's specifications, the valve can be used at temperatures as low as –20°C, but take measures to prevent freezing or solidification of drainage and moisture, etc.

1. Air quality1) Use clean air.

Do not use compressed air which includes chemicals, synthetic oils containing organic solvents, salt or corrosive gases, etc., as it can cause damage or malfunction.

2) Install air filters.Install air filters close to valves at their upstream side. A fil-tration degree of 5µm or less should be selected.

3) Install an air dryer or after cooler, etc.Compressed air that includes excessive drainage may cause malfunction of valves and other pneumatic equipment. To prevent this, install an air dryer or after cooler, etc.

4) If excessive carbon powder is generated, eliminate it by installing mist separators at the upstream side of valves.If excessive carbon powder is generated by the compressor, it may adhere to the inside of valves and cause malfunction.

Refer to SMC's "Air Cleaning Equipment" catalog for further de-tails on compressed air quality.

Selection

Warning

Warning

OFF

C R

Caution1. Leakage voltage

Particularly when using a resistor in parallel with a switching element and using a C-R element (surge voltage suppressor) to protect the switching element, take note that leakage current will flow through the resistor and C-R element, etc., creating a danger that the valve may not shut OFF.

Switching element Leakage voltage

Valve

Leakage current

Pow

er s

uppl

y

10% or less of rated voltage

AC coil

2% or less of rated voltage

DC coil

Series VCA2 Port Solenoid Valve for Fluid Control Precautions 1Be sure to read before handling.

12

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Series VCA2 Port Solenoid Valve for Fluid Control Precautions 2Be sure to read before handling.

13

1. If air leakage increases or equipment does not operate properly, stop operation.After mounting is completed, confirm that it has been done co-rrectly by performing a suitable function test.

2. Do not apply external force to the coil sec-tion.When tightening is performed, apply a wrench or other tool to the outside of the piping connection parts.

3. Do not warm the coil assembly with a heat in-sulator, etc.Use tape and heaters, etc., for freeze prevention on the piping and body only. They can cause burn out of the coil.

4. Secure with the use of brackets or bottom mount threads, except in the case of steel pi-ping and copper fittings.

5. Avoid sources of vibration, or adjust the arm from the body to the minimum length so that resonance will not occur. (Refer to the standard spe-cifications on page 2.)

6. Painting and coatingWarnings or specifications printed or pasted on the product should not be erased, removed or covered up.

Mounting

Warning1. Preparation before piping

Before piping is connected, it should be thoroughly blown out with air (flushing) or washed to remove chips, cutting oil and ot-her debris from inside the pipe.

2. Wrapping of pipe tapeWhen connecting pipes and fittings, etc., be sure that chips from the pipe threads and sealing material do not get inside the valve.

Furthermore, when pipe tape is used, leave 1.5 to 2 thread rid-ges exposed at the end of the threads.

Piping

Caution

3. Avoid connection of ground lines to piping, as this may cause electric corrosion of the system.

4. Always tighten threads with the proper tightening torque.When screwing fittings into valves, tighten with the proper tigh-tening torque shown below.

Connection threads

Rc 1/8

Rc 1/4

Rc 3/8

Rc 1/2

Rc 3/4

7 to 9

12 to 14

22 to 24

28 to 30

28 to 30

Proper tightening torque N⋅ mTightening torque for piping

5. Connection of piping to productsWhen connecting piping to a product, avoid mistakes regarding the supply port, etc.

Windingdirection

Pipe tape

Expose approx. 2 threads

Page 17: Series VC SeriesVCA - SMC ETechcontent2.smcetech.com/pdf/VCA-A_EU.pdfSeries VC 1 Direct Operated 2 Port Solenoid Valve for Air Series VCA. Direct Operated 2 Port for Air SeriesVCA

Series VCA2 Port Solenoid Valve for Fluid Control Precautions 3Be sure to read before handling.

14

1. Use electrical wire with a conductor cross sec-tional area of 0.5 to 1.25mm² for wiring. Furt-hermore, do not allow excessive force to be ap-plied to the lines.

2. Use electrical circuits which do not generate chattering in their contacts.

3. Use voltage which is within ±10% of the rated voltage. In cases where importance is placed on responsiveness, stay within ±5% of the ra-ted value. The voltage drop is the value in the lead wire section connecting the coil.

Wiring

Caution

Electrical Connections

CautionGrommet

Conduit terminal

Conduit

Rated voltage

DC Black Red

View A-A(Internal connection diagram)

– m

ark

+ m

ark

Round head combination screwM3 Tightening torque

0.5 to 0.6N⋅m

2-

1+

Terminal no.

DIN terminal

1

+ (–)

2

– (+)

2: –( + )

1: +( – )

AWG20

2

3+

1

DIN connector

Lead wire color

∗ There is no polarity for DC.

∗ There is no polarity.

∗ There is polarity only when equipped with light.S

MC

Round headcombination screwM3 Tightening torque

0.5 to 0.6N⋅m

Terminal cover

A

Conduit terminal

G1/2Tightening torque0.5 to 0.6N⋅m

• Use compatible heavy duty cords with cable O.D. of ø6.8 to 10.• Use the tightening torques below for each section.

Connector

Compatible cable (cable O.D. ø6.8 to 10)

Cable groundTightening torque 0.5 to 0.6N⋅m

Binding head screwTightening torque 0.5 to 0.6N⋅m

Binding head screw with flangeTightening torque 0.5 to 0.6N⋅m

Gasket

AWG20

Wiring conduit Seal (VCW20-15-6)Bore size G1/2Tightening torque 0.5 to 0.6N⋅m

DC

100VAC

200VAC

Other AC

Rated voltageLead wire colour

Black

Blue

Red

Gray

Red

Blue

Red

Gray

When used as an IP65 equivalent, use seal (part no. VCW20-15-6) to install the wiring conduit. Also, use the tightening torque below for the conduit.

A

SM

C

In the case of the conduit terminal, make connections according to the marks shown below.• Use the tightening torques below for each section.• Properly seal the terminal connection (G1/2) with the special wi-

ring conduit, etc.

Since internal connections are as shown below for the DIN connector, make connections to the power supply accordingly.

Page 18: Series VC SeriesVCA - SMC ETechcontent2.smcetech.com/pdf/VCA-A_EU.pdfSeries VC 1 Direct Operated 2 Port Solenoid Valve for Air Series VCA. Direct Operated 2 Port for Air SeriesVCA

1. Do not use valves in atmospheres of corrosi-ve gases, chemicals, salt water, water, steam, or where there is direct contact with any of these.

2. Do not use in explosive atmospheres.3. Do not use in locations subject to vibration or

impact. 4. Do not use in locations where radiated heat

will be received from nearby heat sources.5. Employ suitable protective measures in loca-

tions where there is contact with water dro-plets, oil or welding spatter, etc.

Operating Environment

Warning

1. Removing the product1. Shut off the fluid supply and release the fluid pressure in the

system.

2. Shut off the power supply.

3. Remove the product.

2. Low frequency operationSwitch valves at least once every 30 days to prevent malfunction.

Maintenance

Warning

1. Filters and strainers1. Be careful regarding clogging of filters and strainers.

2. Replace filter elements after one year of use, or earlier if the amount of pressure drop reaches 0.1MPa.

3. Clean strainers when the amount of pressure drop reaches 0.1MPa.

4. Flush drainage from air filters periodically.

2. Manual override operationWhen the manual override is operated, connected equipment will be actuated. Confirm safety before operating.

Caution

1. This solenoid valve can be operated without lubrication.In the event that it is lubricated, use Class 1 turbine oil (without additives), ISO VG32.

Lubrication

Caution

DC circuit AC circuit

DC circuit AC circuit

Without light Without light

With light With light

1 ( + )

2 ( – )

SOL.

ZNR

SOL.

SOL. SOL.

1 ( )

2 ( )

1 ( )

2 ( )

1 ( + )

2 ( – )

1 ( + )

2 ( – )

Electrical Circuits

CautionGrommet, Conduit, Conduit terminal, DIN connector

Conduit terminal

DC circuit AC circuit

DIN connector

ZNR

Rectifying deviceZNR

Rectifying deviceZNR

Light

SOL.

1 ( )

2 ( )

Rectifying deviceZNR

Light

Light

ZNR

Light

With light With light

Series VCA2 Port Solenoid Valve for Fluid Control Precautions 4Be sure to read before handling.

15

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Manual Override Operation

Warning

Assembly and Disassembly

CautionManual operation

Closed condition (vertical slot) Open condition (horizontal slot)

Opening the valve: With a flat head screw driver, turn 90° to the right to open the valve. The valve remains in the open condition even when the screw dri-ver is removed.

Closing the valve: Turn 90° to the left from the open condition to close the valve.

Perform electrical operation with the valve closed.

Slotted locking type (tool required)

• Before disassembling, shut down the power supply and air pressure supply, and release the residual pressure.

• Disassembly procedure

1. Remove the mounting screws on the top.

2. Remove the solenoid coil, spring, and armature as-sembly.

3. If foreign matter is adhering to the parts, perform an ap-propriate procedure, such as blowing with air or cleaning with a neutral detergent.

• Assembly procedure

Re-assemble by following the disassembly procedure in the reverse order.

When changing the electrical entry direction, mount it in the direction that solenoid coils will be mounted.

Note 1) For series VCA30, the end of the spring with the smaller O.D. is fitted over the armature assembly.Be sure to make this dis-tinction when assem-bling.

Note 2) Tighten the four moun-ting screws in the diago-nally crossing order, and use the proper tightening torque below.

Proper tightening torqueVCA20VCA30VCA40

0.4 to 0.5

0.6 to 0.8

0.6 to 0.8

N⋅m

Mounting screw

Solenoid coil

SpringDirectional for VCA30 only

Armature assembly

O-ring

Body

Series VCASpecific Product PrecautionsBe sure to read before handling.Refer to pages 11 through 15 for safety instructions and precautions of 2 port solenoid valve for fluid control.

16

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SMC CORPORATION 1-16-4 Shimbashi, Minato-ku, Tokio 105 JAPAN; Phone:03-3502-2740 Fax:03-3508-2480

© DiskArt™ 1988

© DiskArt™ UKSMC Pneumatics (UK) LtdVincent Avenue, Crownhill,Milton Keynes, MK8 0ANPhone: 01908-563888 Fax: 01908-561185

AustriaSMC Pneumatik GmbH (Austria).Girakstrasse 8, A-2100 KorneuburgPhone: 02262-62280, Fax: 02262-62285

CzechSMC Czech.s.r.o.Kodanska 46, CZ-100 10 Prague 10Phone: 02-67154 790, Fax: 02-67154 793

PortugalSMC España (Sucursal Portugal), S.A.Rua de Engº Ferreira Dias 452, 4100 PortoPhone: 02-610-89-22, Fax: 02-610-89-36

BelgiumSMC Pneumatics N.V./S.A.Nijverheidsstraat 20, B-2160 WommelgemPhone: 03-355-1464, Fax: 03-355-1466

LithuaniaUAB Ottensten LietuvaSavanoriu pr.180, LT-2600 Vilnius, LithuaniaPhone/Fax: 370-2651602

LatviaOttensten Latvia SIACiekurkalna Prima Gara Linija 11,LV-1026 Riga, LatviaPhone: 371-23-68625, Fax: 371-75-56748

DenmarkSMC Pneumatik A/SJens Juuls vej 32, DK-8260 Viby JPhone: 45-70252900, Fax: 45-70252901

SwedenSMC Pneumatics Sweden A.B.Ekhagsvägen 29-31, S-14105 HuddingePhone: 08-603 07 00, Fax: 08-603 07 10

FranceSMC Pneumatique, S.A.1, Boulevard de Strasbourg, Parc Gustave EiffelBussy Saint GeorgesF-77607 Marne La Vallee Cedex 3Phone: 01-6476 1000, Fax: 01-6476 1010

FinlandSMC Pneumatiikka OYVeneentekijäntie 7, SF-00210 HelsinkiPhone: 09-681021, Fax: 09-6810233

EstoniaTeknoma Eesti ASMustamäe tee 5, EE-0006 Tallinn, EstoniaPhone: 259530, Fax: 259531

GreeceS. Parianopoulus S.A.9, Konstantinoupoleos Street,GR-11855 AthensPhone: 01-3426076, Fax: 01-3455578

TurkeyEntek Pnömatik San. ve Tic Ltd. Sti.Perpa Tic. Merkezi Kat: 11 No: 1625,TR-80270 Okmeydani IstanbulPhone: 0212-221-1512, Fax: 0212-220-2381

PolandSemac Co., Ltd.PL-05-075 Wesola k/Warszaway, ul. Wspolna 1APhone: 022-6131847, Fax: 022-613-3028

NetherlandsSMC Pneumatics BVPostbus 308, 1000 AH AmsterdamPhone: 020-5318888, Fax: 020-5318880

IrelandSMC Pneumatics (Ireland) Ltd.2002 Citywest Business Campus,Naas Road, Saggart, Co. DublinPhone: 01-403 9000, Fax: 01-464 0500

SpainSMC España, S.A.Zuazobidea 14, Pol. Ind. Jundiz,E-01015 VitoriaPhone: 945-184 100, Fax: 945-184 124

HungarySMC Hungary Kft.Budafoki ut 107-113, 1117 BudapestPhone: 01-204 4366, Fax: 01-204 4371

RussiaSMC Pneumatik LLCCentrako Business Centre 103,Bolshoy Prospect V.O., 199106 St. PetersburgPhone: 812-1195131, Fax: 812-1195129

SwitzerlandSMC Pneumatik AGDorfstrasse 7, CH-8484 WeisslingenPhone: 052-396-3131, Fax: 052-396-3191

ItalySMC Italia S.p.AVia Garibaldi 62, I-20061 Carugate, (Milano)Phone: 02-92711, Fax: 02-92150394

GermanySMC Pneumatik GmbHBoschring 13-15, D-63329 EgelsbachPhone: 06103-4020, Fax: 06103-402139

NorwaySMC Pneumatics (Norway) A/SWollsveien 13 C, granfoss NoeringsparkN-134 Lysaker, NorwayPhone: 22 99 6036, Fax: 22 99 6103

SloveniaSMC Slovenia d.o.o.Grajski trg 15, 8360 ZuzemberkPhone: 068-88 044 Fax: 068-88 041

SlovakiaSMC Slovakia s.r.o.Pribinova ul. C. 25, 819 02 BratislavaPhone: 0-563 3548, Fax: 07-563 3551

RomaniaSMC Romania srlVasile Stroescu 19, Sector 2, BucharestPhone: 01-210-1354 , Fax: 01-210-1680

Specifications are subject to change without prior noticeand any obligation on the part of the manufacturer.

SMC UK Contact Numbers

BirminghamJAMES LISTERTel: 0121 5803800Fax: 0121 5535951

BlackburnBLACKBURN PNEUMATIC SYSTEMS LTDTel: 01254 682232Fax: 01254 682224

SMC UK DistributorsBristolAPPLIED AUTOMATIONTel: 0117 9827769Fax: 0117 9235522

Bury St EdmundsPNEUMATIC LINESTel: 01284 706239Fax: 01284 761218

CardiffWALES FLUID POWERTel: 02920 494551Fax: 02920 481955

PlymouthAPPLIED AUTOMATIONTel: 01752 343300Fax: 01752 341161

ARGENTINA, AUSTRALIA, BOLIVIA, BRASIL, CANADA, CHILE, CHINA, HONG KONG, INDIA, MALAYSIA, MEXICO, NEW ZEALAND,PHILIPPINES, SINGAPORE, SOUTH KOREA, TAIWAN, THAILANDIA, USA, VENEZUELAFor more information, please contact your local SMC Regional Centre

OTHER SUBSIDIARIES WORLDWIDE:

THE NATIONAL SALES CENTRE FOR ENGLAND & WALES Internal Sales

(Price, Delivery Information & Order Placement)Freephone: 0800 138 2930 Fax: 01908 555064

e-mail:[email protected]

Customer Services (Post-Order Resolution)

Freephone: 0800 138 2931 Fax: 01908 555065 e-mail: [email protected]

Head Office: SMC Pneumatics (UK) Ltd, Vincent Avenue, Crownhill, Milton Keynes MK8 0AN

SMC SALES CENTRE FOR SCOTLAND & N. IRELAND Tel: 01236 781133 Fax: 01236 780611

SMC Pneumatics (UK) Ltd, 1 Carradale Crescent, Broadwood Business Park, Cumbernauld, Glasgow G69 9LE

TECHNICAL CENTREFreephone: 0800 138 2932 Fax: 01908 555066

e-mail: [email protected]

SMC FAST RESPONSE(Literature & Catalogue Requests)

0800 0262006

2000/03/01